Gold Mining: Proceedings of the International Conference on Gold Mining Technology, Beijing, China, 15-17 June 1993 |
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Page 84
... mylonite zones have been discovered in mining district in an echelon arrangement trending NE 50 ° ± , distributed at the north of Baoyakuang - Kengwei fracture , in the area of migmatitic schist and gneiss ( 2 km wide ) . According to ...
... mylonite zones have been discovered in mining district in an echelon arrangement trending NE 50 ° ± , distributed at the north of Baoyakuang - Kengwei fracture , in the area of migmatitic schist and gneiss ( 2 km wide ) . According to ...
Page 85
... mylonite zone and mylonitization zone . The main orebody mostly occurs in ultramylonite zone or mylonite zone . 3. Follow the variation of intensity of ductile - shearing deformation , the elements in that zone have shown the phenomena ...
... mylonite zone and mylonitization zone . The main orebody mostly occurs in ultramylonite zone or mylonite zone . 3. Follow the variation of intensity of ductile - shearing deformation , the elements in that zone have shown the phenomena ...
Page 87
... mylonite , and both of the orebodies & mylonite zones having the regularities of " ex- tension along dip direction is longer than that in trending " , the sites of new orebodies in plane & section are predicted . 2. The criteria of ...
... mylonite , and both of the orebodies & mylonite zones having the regularities of " ex- tension along dip direction is longer than that in trending " , the sites of new orebodies in plane & section are predicted . 2. The criteria of ...
Contents
Prospecting Criteria and DeepSeated Prognosis of Buried Ore in Jiapigou Gold Mining | 8 |
Update on Mining Activities on the Island of Hispaniola Dominican Republic and Haiti | 23 |
An Approach of the Geologic Genesis of Jinchanggouliang Gold Deposit Inner Mongolia | 42 |
Copyright | |
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According alteration angle application average backfill belt blasting block body capacity carried cement China compressive concentration cost depth direction distribution district dredge drift drilling economic effect efficiency equipment exploration fault Figure flocculation formed fracture geological gold deposits gold mines grade ground higher holes important improved increase indices intensity length less load located loss lower major mass material measures mechanized method mill mineralization mining method occurred operation orebody period pillar placer present problems production prospecting Province quartz raise range ratio recovery reduced rock roof samples screen sericitic shaft shown shrinkage side slice sluice stage stope strength stress strike stripping structure surface Table tailing thickness tion trend upper various vein ventilation vertical wall zone